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Pinpoint an element in a webpage with ease and precision.
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Send messages to the console direct from your webpage through Javascript.
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Measure your Javascript performance in the Console's Profiler.
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Step-by-step interactive debugging in a visual environment.
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Look at detailed measurements of your site's network activity.
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Tweak and position HTML elements with CSS and the Layout panels.

Recent news

Firebug 1.9b5

23 December 2011 | 1:35 pm

Firebug 1.9b5 has been released (compatible with Firefox 5-12).

Firebug 1.9b5 fixes 11 issues.

A problem with HTML edit (issue 5058) is fixed in this release.

This should be the last Firebug 1.9 beta. In case there are no critical problems or blockers found, we’ll release Firebug 1.9 final in January.

Happy firebugging!

Post feedback in the newsgroup, thanks!

Jan ‘Honza’ Odvarko

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Firebug 1.9b4

16 December 2011 | 3:18 pm

Firebug 1.9b4 has been released (compatible with Firefox 5-11.0a1).

Firebug 1.9b4 fixes 8 issues.

Among other things, we fixed couple of bugs (issue 3009 and issue 1189) in the Style side-panel (the one within the HTML panel) and we are keen to get a feedback so, don’t hesitate to create a report if you run into any issues.

Try it out and let us know how it works for you!

Post feedback in the newsgroup, thanks!

Jan ‘Honza’ Odvarko

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Firebug 1.9b3

2 December 2011 | 2:32 pm

Firebug 1.9b3 has been released (compatible with Firefox 5-11.0a1).

See AMO archive for all Firebug final and beta releases.

Firebug 1.9b3 fixes 10 issues.

Try it out and let us know how it works for you!

We are also still hard working on reducing amount of memory Firebug needs and we appreciate any specific test cases that shows when exactly is Firebug consuming too much memory.

Post feedback in the newsgroup, thanks!

Jan ‘Honza’ Odvarko

Comment on this entry »

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